Old Opera House, Frankfurt
Heidelberg
The Rhine River, Germany, from atop the legendary 'Lorelei' Rock
Pfalzgrafenstein Castle in the Rhine River, Germany
http://en.wikipedia.org/wiki/Burg_Pfalzgrafenstein
Old-town Frankfurt and the Main River - from the top of the
Eltz Castle, Germany
http://www.atlasobscura.com/places/castle-eltz-burg-eltz
Churchyard display, Altenstadt, Alsace, France (near the German border)
'Walkable Roller Coaster', Duisburg, Germany
Sitting at the point where Germany, The Netherlands, and Belgium meet
Ruhr Museum, Essen, Germany
Ruhr Museum, Essen, Germany
Giant clothespin sculpture, Liège, Belgium
Ruhr Museum, Essen, Germany
Cologne Cathedral at night
The old coke works, Ruhr Museum, Essen, Germany